Added POWER_DOMAIN_VIDEO power domain and added its helper stuff.
POWER_DOMAIN_VIDEO is a hook to "DC5 Off" power well.
which can disallow DC5/6 in order to allow dc3co.
Cc: jani.nikula@xxxxxxxxx
Cc: imre.deak@xxxxxxxxx
Cc: animesh.manna@xxxxxxxxx
Signed-off-by: Anshuman Gupta <anshuman.gupta@xxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_display_power.c | 3 +++
drivers/gpu/drm/i915/display/intel_display_power.h | 1 +
drivers/gpu/drm/i915/i915_drv.h | 6 ++++++
3 files changed, 10 insertions(+)
diff --git a/drivers/gpu/drm/i915/display/intel_display_power.c b/drivers/gpu/drm/i915/display/intel_display_power.c
index 62d68e21d5fa..9d29ee460c68 100644
--- a/drivers/gpu/drm/i915/display/intel_display_power.c
+++ b/drivers/gpu/drm/i915/display/intel_display_power.c
@@ -122,6 +122,8 @@ intel_display_power_domain_str(struct drm_i915_private *i915,
return "VGA";
case POWER_DOMAIN_AUDIO:
return "AUDIO";
+ case POWER_DOMAIN_VIDEO:
+ return "VIDEO";
case POWER_DOMAIN_AUX_A:
return "AUX_A";
case POWER_DOMAIN_AUX_B:
@@ -2762,6 +2764,7 @@ void intel_display_power_put(struct drm_i915_private *dev_priv,
#define TGL_DISPLAY_DC3CO_OFF_POWER_DOMAINS ( \
TGL_PW_2_POWER_DOMAINS | \
+ BIT_ULL(POWER_DOMAIN_VIDEO) | \
BIT_ULL(POWER_DOMAIN_MODESET) | \
BIT_ULL(POWER_DOMAIN_AUX_A) | \
BIT_ULL(POWER_DOMAIN_INIT))
diff --git a/drivers/gpu/drm/i915/display/intel_display_power.h b/drivers/gpu/drm/i915/display/intel_display_power.h
index 93ee08de7b06..635b93cf67fd 100644
--- a/drivers/gpu/drm/i915/display/intel_display_power.h
+++ b/drivers/gpu/drm/i915/display/intel_display_power.h
@@ -65,6 +65,7 @@ enum intel_display_power_domain {
POWER_DOMAIN_PORT_OTHER,
POWER_DOMAIN_VGA,
POWER_DOMAIN_AUDIO,
+ POWER_DOMAIN_VIDEO,
POWER_DOMAIN_AUX_A,
POWER_DOMAIN_AUX_B,
POWER_DOMAIN_AUX_C,
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 4f444718cd1f..72bbc786053e 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -360,6 +360,12 @@ struct intel_csr {
u32 allowed_dc_mask;
intel_wakeref_t wakeref;
bool prefer_dc3co;
+ intel_wakeref_t dc5_wakeref;
+ /*
+ * Mutex to protect dc5_wakeref which make maintain proper
+ * power domain reference count of POWER_DOMAIN_VIDEO
+ */
+ struct mutex dc5_mutex;
};
enum i915_cache_level {
--
2.21.0
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